| .tstream |
SwarmPlayer Streaming Torrent |
| .ttx |
Trados TagEditor File |
| .temp |
Temporary (Temp) File |
| .tls |
TuneUp Utilities Logon Screen |
| .tip |
TuneUp Utilities Icon Package |
| .tcr |
Psion Series 3 eBook File |
| .tec |
TECkit Compiled Mapping File |
| .td |
Thunder Incomplete Download File |
| .tnsp |
TI-Nspire PublishView Document |
| .tfil |
Blizzard Software Update File |
| .tmb |
Timbuktu Pro Connection Document |
| .tnef |
Transport Neutral Encapsulation Format |
| .t$m |
AVG Internet Security Temporary File |
| .tla |
TuneUp Utilities Startup Logo |
| .tpkey |
TexturePacker License Key File |
| .trace |
VMware ThinApp Trace Log File |
| .tmpl |
Xfire User Interface Template |
| .tvl |
TurboTax File |
| .tko |
AMX Software Module File |
| .tcz |
Tiny Core File |
| .uls |
NetMeeting User Location Service File |
| .unknown |
Unknown File Type |
| .upg |
Upgrade File |
| .uds |
NetBackup UNIX Domain Socket File |